Wire twisting and weaving machine.



No, 742,230. v PATE'NTBD OCT. 27, 1903.,

' 0.. PFEIPPBR.

- WIRE TWISTING AND WBAVING MACHINE.

APPLIOATION FILED MAR. 23, 1903. N0 MODEL.

2 SHEETS-SHEET 1,.

m: norms PETERS co, Pnormjma. WASHINGTON n. c. I

No. 242,230., PATENT-ED 00127, 1903.

o. PFEIFPER. WIRE 'TWISTINGAND WE-AVING MACHINE.

APPLICATION FILED MAR. 23, 1903. N0 MODEL. 2 2 SHEETS-SHEET 2,.

-. will 11 I @Ww wn4: Mom's PETERS c0 FHOTO-LITHCL, WASHINGTON, 0. c.

UNITE ST TES Patented October 2'7, 1993.

1 PATENT OFFICE.

WIRE TWISTING AND WEAVVING MACHINEJ QEECIFICATION forming part of Letters Patent No. 742,230, dated October 2 '7, 1903. Application filed March 23, 1903. Serial No. l49,0b8 (No model.)

T at whom it may concern:

Be it known that I, CHARLES PFEIFFER, a citizen of the United States, residing at Milwankee,in the county of Milwaukee and State of Wisconsin, have invented certain new and useful Improvements in Wire Twisting and Weaving Machines, of which the following is a specification, reference being had to the accompanyingdrawings,forminga part thereof.

This invention relates to machines for twisting or forming wire into spirals and weaving the same together for beds or the like, and particularly to stop mechanism for such machines. Its main objects are to automatically stop a machine of this kind so that successive spirals as they are delivered by the twister shall terminate exactly at the same point or in line with each other, thereby avoiding Waste of material, loss of time, and the labor and annoyance of trimming the spirals to exact length or to line, to provide of a wire twisting and weaving machine'em-' bodying my invention. Fig. 2 is a cross-section of the same on the line 22, Fig. 1. Figs.

3, t, 5, and 6 are detail Views of the stop mechanism, Fig. 3 being a side elevation, Fig. 4 a horizontal section on the line 4t 4, Fig. 3, Fig. 5 a cross-section on the line 5 5, Fig. 3, and Fig, 6. an inverted plan view of the adjustable trip-bar and parts immediately associated therewith.

a a are, grooved feed-rollers mounted on parallel shafts .b b; which are connected by similar gears c c, and dis a spirally-grooved twister. or twisting-die, to which the wire is fed by the rollers a and by which it is twisted or formed into spirals, each spiral as it is delivered from the twister being engaged and interwoven with the next preceding spiral.

e is a pulley loosely mounted on one of the shafts b, and f is a clutch ofany suitable construction for connecting'said pulley with said shaft at will, ashoreinafter explained.

The parts thus far mentioned are or may be like or similar to those of machines of this class as heretofore constructed.

g is a conical or tapering fork-collar movable endwise on the pulley-shaft for operating-the clutchf and engaging and disengaging the pulley e and the shaft on which it is mounted to start and stop. the feed-rollers a.

' his a longitudinally-movable rod supported by suitable bearings in the frame of the machine parallel with the roller-shafts b. It is provided with a fork-arm i, which loosely on gages with the groove in the collar g, and-it I is also provided with a retracting-spring-j, which tends-to withdraw the-collar g andto verse rocker-shaft Z, which is located below it and provided at its opposite 'endwith a horizontally-disposed latch-arm m; With this latch-arm is connected by a rod 11 an ortached a retracting-spring r and an operating-rod 8, extending to the front end of the machine within easy reach of the operator. The latch 0 is constructed and arranged to engage with the free endof the arm m when the latter is depressed and to hold the rod h with the collar g advanced and the clutch f looked. The rod 8 affords means for manually disengaging the latch 0 from the arm 'm, and thereby releasing the clutchf to stop the machine. I

t is a longitudinally-.movable trip bar loosely guided in a suitable way or bearings parallel with the rod h. 'uu are opposing friction-rollers arranged on opposite sides of said bar and connected by gears 12 n. One of said rollers is carried by a slide 'w, movable 'unlockor disengage the clutch f. his an arm pivoted to said rod h and fixed on a trans- ICO toward and from the other roller, which is connected by a worm-gear w and a worm y with the shaft 1) of one of the feed-rollers. The bar 15 is provided with a projection z, in whose path the free end of the latch 0 is located. A weight 2, connected by a cord passing over a sheave 3 with said bar, tends to return it to its initial position when it is released. An adjustable stop-screw 4, provided with a jam-nut 5 for looking it in place, limits the return movement of said bar and determines its initial position. The clutchoperating rod h is provided on one side with a leaf-spring 6, bent to engage with a beveled or inclined face on the slide to and to force the roller n, which it carries, toward the opposing roller, thereby gripping or clamping the interposed bar '6 between them when the rod h is advanced to engage or look the clutch fand start the machine.

My improved machine operates as follows: The stop-screw L being adjusted for any desired length of spirals and the end of the wire being passed between the rollers a and through the twister d, the machine is set in motion by depressing the treadle, which throws the rod h forward, looking the clutch, clamping the frictionrollers u, on the bar I, and engaging the arm on with the latch 0. The machine is thus set in operation and the trip-bar t is simultaneously started forward by the rotation of the friction-rollers a, which are geared with the feed-rollers a. When the projection z strikes the latch o, the latter is thereby thrown against the tension of spring 7' out of engagement with the arm on. The spring j thereupon withdraws the rod h to its initial position, unlocking the clutchf, stopping the feed-rollers, and sim ultaneously releasing the grip of the friction-rollers it on the bar 25, which is thereupon withdrawn by the weight 2 to its initial position against the stop-screw 4. The wire being severed at and started from exactly the same point every time the machine is stopped and set in operation, the successive spirals formed and delivered by the twister will terminate when the machine is automatically stopped by the bar t at exactly the same point, and when woven together the ends of the spirals or sections of wire will be even. Taste of material and loss of time and the labor and trouble of trimming the ends of the spirals to line with each other are thus avoided. The movement of the tripbar t by the rollers u corresponding with the movement of the feed-rollers a, it follows that for any given adjustment of the stop-screw 4 the feed-rollers will make the same number of revolutions for every advance of the stud or projection .2 on said bar from its initial position to the point of tripping the latch 0, so that starting from the same point successive spirals will terminate at exactly the same point or in line wit-h each other when they are interwoven. V

By the adjustment of the stop-screw 4 to lengthen or shorten the movement of the bar Wrasse 15 before it trips the latch o spirals of any desired length may be produced. The screw also affords means of accurate and fine adjustment.

To stop the machine before the latch 0 is tripped by the projection on the bar '15, as it is frequently necessary or desirable to do in the operation of a machine of this kind-as, for instance, when the spiral being formed by the twister fails to properly engage or runs out of engagement with the preceding spiralthe operator has simply to thrust the rod 8 inward to disengage the latch o from the arm m, whereupon the clutch will be unlocked and the bar i will be released by the rollers u the same as when the latch is tripped by the normal operation of said bar 6, as above explained.

Various changes in the details of construction and arrangement of parts may be made within the spirit and intended scope of the invention.

I claim- 1. In a wire twisting and weaving machine the combination with the feed-rollers, of stop mechanism comprising a longitudinally-movable trip-bar and friction-rollers geared with said feed-rollers and adapted to actuate said bar, substantially as described.

2. In a wire twisting and weaving machine the combination with the feed-rollers, of stop mechanism comprising a longitudinally-movable trip bar, opposing friction-rollers geared with said feed-rollers and adapted to actuate said bar, and an adjustable stop determining the initial position of said bar, substantially as described.

3. In a wire twisting and weaving machine the combination with the feed-rollers, of antomatic stop mechanism comprising a longitudinallymovable tripbar, frictionrollers geared with said feed-rollers and adapted to actuate said bar in one direction synchronously with the rotation of the feed-rollers, a stop for limiting the return movement of said bar and means for returning said bar, when released, to its initial position, substantially as described.

4. In a wire twisting and weaving machine the combination with the feed-rollers, of stop mechanism comprising a longitudinally-movable trip-bar, friction-rollers geared with said feed-rollers and adapted to move said bar when gripped thereon in one direction, means for forcing said friction-rollers together on said bar when the machine is started and means for releasing their grip when the ma-,

the combination with twisting mechanism comprising feed-rollers and a suitable clutch v for connecting the same with a driver, of a longitudinally-movable bar adapted at the limit of its movement in one direction to disengage the clutch, an adjustable stop for limiting the movement of'said bar in the opposite direction, and friction rollers arranged to embrace and operate said bar, substantially as described.

7. In a wire twisting and weaving machine the combination with twisting mechanism comprising feed-rollers, a driver, a clutch for engaging said rollers with the driver, and a latch for holding said clutch engaged with the driver, of a longitudinallymovable bar adapted at the limit of its movement in one direction to disengage said latch and release the clutch, and friction-rollers geared with the feed-rollers and adapted to actuate said bar, substantially as described.

8. In a wire-twisting machine the combination with twisting mechanism comprising feed-rollers, a driver, and a clutch for engaging said rollers with said driver, of a 10ngitudinally-movable bar adapted at the limit of its movement in ,one direction to release the clutch, and friction-rollers geared with the feed-rollers and adapted to advance said bar, means for gripping said rollers on said 'bar when the clutch is engaged with the driver, means for releasing the grip of the rollers on said bar when the clutch is disengaged from the driver, and means for withdrawing said bar when it is released to its initial position, substantially as' described.

9. In a Wire-twisting machine the combination with twisting mechanism comprising feed-rollers, a suitable driver, and a clutch for connecting said rollers with the driver, of means under control of the operator for engaging and disengaging the clutch and driver, a longitudinally-movable bar for automatically releasing the clutch, and friction-rollers geared with the feed-rollers and adapted to engage and actuate said bar, substantially as described.

10. In a wire twisting and weaving'machine the combination with twisting mechanism comprising feed rollers, a suitable driver, a clutch for connecting said rollers with the driver, and a latch for holding the clutch engaged with the driver, of a 1ongitudinally-movable bar for disengaging said latch, friction-rollers geared with the feed- 'rollers and adapted toactuate said bar, and

anism comprising feed-rollers, a suitable driver and a clutch for connecting said roll'ers rollers being movable toward and from the other, a longitudinally-movable rod adapted to engage said clutch with the driver and provided with a spring for pressing the movable friction-roller toward the other when the clutch is engaged with the driver, a latch for locking said rod in position to engage the clutch with the driver, means for retracting said rod to its initial position when it is released, and a longitudinallymovable bar passing between said friction-rollers and adapted to be actuated thereby when they tially as described.

12. In a wire twisting and weaving machine the combination with twisting mechanism comprising intergeared feed-rollers, a suitable driver, a clutch for connecting one of the roller-shafts with said driver, and a tapered fork-collar for engaging the clutch, of a longitudinallymovable rod provided with a fork engaging said collar, a lever for advancing said rod and engaging the clutch, a spring tending to retract said rod and disengage the clutch, a latch for holding said rod advanced and the clutch engaged against the tension of said spring, and means for antomatically tripping said latch when the feedrollers have made a certain number of revolutions, substantially as described.

13. In a wire twisting and weaving machine the combination with twisting mechanism comprising feed rollers, a suitable driver and a clutch for connecting said driver and rollers, of a latch for holding said clutch engaged, a longitudinally-movable bar for tripping said latch and releasing the clutch, opposing intergeared friction-rollers on opposite sides of said bar, one of said rollers being movable toward and from the other, a worm on one of the feed-roller shafts meshing with a gear on one of the friction-roller shafts, means under the control of the operator for engaging the clutch and clamping the friction-rollers upon said bar, means for returning said bar when released to its initial position, an adjustable stop for limiting the return movement of saidbar, and means for .automatically releasing the grip of said are closed upon it to trip said latch, substan- IIO friction-rollers on said bar when said clutch is disengaged, substantially as described.

14:. In a wire twisting and weaving ma chine, the combination with twisting mechanism comprising feedrollers, a suitable driver, and a clutch for connecting said rollers and driver, of a longitudinally-movable spring-retracted rod for operating said clutch, a lever for advancing said rod and engaging the clutch, a latch for locking said rod in its advanced position, a longitudinally-movable bar adapted by its advance movement to trip said latch, means for returning said bar when released to its initial position, an adjustable stop limiting the return movement of said bar, opposing friction-rollers arranged on opposite sides of said bar, one being geared with one of the feed-rollers and one being In witness whereof I hereto aifix my signamovable toward and from said bar, and a ture in presence of two Witnesses.

spring on said rod arranged when it is advanced for engaging the clutch to press the movable friction-roller toward the opposing itnesses:

roller and grip said bar between them, snb- CHAS. L. GOSS, stantially as described. ALICE E. GOSS.

CHAS. PFEIFFER. 

